Hello All:
Sorry to be so late in chiming in!
First off, we've found that most users have problems using USB/Serial converters, and we generally don't recommend this setup if at all avoidable. That being said, some users do have success in this regard.
As I mentioned in a direct e-mail to you, Kitoff, we did discover that for a brief period we did have a bad algortihm in distribution. Did you download the algorithms from the link above, as Alban suggested? If you had, this would address your issue (if you are in fact facing an issue regarding this bad algorithm).
I apologize that you didn't receive the answers you were looking for from P&E; however, I would like to "second" what Alban said -- usually P&E does provide very prompt and knowledgable support. Your experience is the exception, rather than the rule.
Please let us know if you've updated the algorithm, and if you're still having this issue after so doing.
Regards,
Mark
P&E